Vent cap



FIG. 1 is a top perspective view of the design;

FIG. 2 is a front elevation of the design;

FIG. 3 is rear elevation of the design;

FIG. 4 is right side view of the design as shown in FIG. 2, the left side view being a mirror image thereof;

FIG. 5 is a top plan view of the design;

FIG. 6 is a bottom plan view of the design; and,

FIG. 7 is a perspective view of the lid and support legs of the design separated from the base. 

The ornamental design for a vent cap, as shown and described. 